I found a set of six blue ones on clearance at Marshall's for $10 a couple weeks ago, and I finally took the time to switch them out. Now, the old buffet/current toy storage unit has 8 knobs needing replacement, so I also pulled out 2 green knobs that I had on hand already when I switched out our dining room buffet brown knobs for green knobs (they came in a pack of 4). I figured I could use the brown pair or the leftover green pair for the remaining 2 knobs.
Here are the knobs all packaged up:
And here is a pretty bad after picture (soon I'll capture the entire room and I'll be sure to include better pictures of the knobs.):
It's another cheery addition for Lucky's Room!